## Algebra and Trigonometry 10th Edition

a) $\frac{5+2}{5-4}=\frac{7}{1}=7\geq3$, thus yes b) $\frac{4+2}{4-4}=\frac{6}{0}$, this is undefined, thus it cannot be a solution c) $\frac{-4.5+2}{-4.5-4}=\frac{-2.5}{-8.5}\approx0.29\lt3$, thus no d) $\frac{4.5+2}{4.5-4}=\frac{6.5}{0.5}=13\geq3$, thus yes